Spacetime With Stuart Gary

89: Looking at Earth’s ultimate fate

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Sinopsis

Stream Episodes on demand from www.bitesz.com or www.spacetimewithstuartgary.com (both mobile friendly) *Looking at Earth’s ultimate fate Astronomers have had a chance to peer into the future and see what our home planet Earth will be like in five billion years’ time. They’ve been observing an aging red giant star a hundred times bigger than the Sun called L2 Puppis which has a planet orbiting it. Their findings may answer questions about our own planet’s ultimate fate. *New clues about the creation of Jupiter the solar system’s king of planets Jupiter probably reached its present day size as the solar system’s largest planet with in just 5 million years of the first solid material condensing out of the primordial gas. The findings are based on studies of a specific class of meteorites known as CB chondrites which have offered new clues about when the planet Jupiter took shape and wandered through the solar system. *Dawn’s mission to the asteroid belt Jonathan Nally editor of Australian Sky and Telescope join